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Siemens SIMATIC S7-1500 6ES7521-7EH00-0AB0 Digital Input Module

Siemens SIMATIC S7-1500 digital input module, 16 channels, 24-125V UC.

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ManufacturerSiemens

Part number6ES7521-7EH00-0AB0

Channels 16 DI

Voltage 24-125V AC/DC (UC)

Input Delay 0.05-20 ms

Input Type 3 (IEC 61131)

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16 Universal Voltage Digital Inputs 0.05-20ms Selectable Input Delay Input Type 3 (IEC 61131) High Feature (HF) Module Diagnostics and Hardware Interrupts SIMATIC S7-1500 Series

Product description

The Siemens SIMATIC S7-1500 6ES7521-7EH00-0AB0 is a high-feature (HF) digital input module with 16 channels that accept universal voltage inputs from 24V to 125V AC/DC (UC). It features a fast input delay ranging from 0.05 ms to 20 ms and supports Input Type 3 according to IEC 61131. This module includes diagnostic capabilities and hardware interrupt functions for enhanced system monitoring and response.

This versatile module is suited for a wide array of industrial environments, particularly where varying voltage levels need to be monitored or where fast signal acquisition and diagnostic feedback are critical. Applications include complex machine control, process automation, and safety-related systems requiring detailed status information.

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Technical specifications

Channels	16 DI
Voltage	24-125V AC/DC (UC)
Input Delay	0.05-20 ms
Input Type	3 (IEC 61131)
Series	SIMATIC S7-1500 HF
Diagnostics	Yes
Interrupts	Hardware
Front Connector	Sold Separately

Common applications

Complex Machine Control

Process Automation

Safety Systems

Multi-voltage Environments

High-speed Signal Acquisition

Industrial Monitoring

Compatible systems

SIMATIC S7-1500 PLC

Also known as

Siemens DI 16x24-125V UC HF S7-1500 Universal Input 6ES75217EH000AB0

Replaces / compatible with

Compatible with Siemens SIMATIC S7-1500 controllers and accessories.

Technical note

Expert tip

The 'HF' designation indicates High Feature capabilities, including advanced diagnostics and interrupt handling, making it suitable for demanding applications.

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Frequently asked questions

What is the voltage range for the Siemens 6ES7521-7EH00-0AB0 input module?

The Siemens 6ES7521-7EH00-0AB0 digital input module supports universal voltage inputs from 24V to 125V AC/DC (UC). This allows for flexible integration into systems with diverse power sources.